Question 1

In FM, frequency of modulated wave varies with

Accepted Answer

A) amplitude 
B) time 
C) wavelength 
D) energy 
A) amplitude 
B) time 
C) wavelength 
D) energy B

Question 2

Unwanted signal that distorts a transmitted signal is called

Accepted Answer

A) analogue 
B) noise 
C) digital 
D) tuning 
A) analogue 
B) noise 
C) digital 
D) tuning B

Question 3

With a 30 m long coaxial cable, the bandwidth can exceed

Accepted Answer

A) 100 MHz 
B) 1000 MHz 
C) 50 MHz 
D) 300 MHz 
A) 100 MHz 
B) 1000 MHz 
C) 50 MHz 
D) 300 MHz A

Question 4

If a current of 1 A passes through a point in 1 s then charge passes that point is

Accepted Answer

A) 2 C 
B) 3 C 
C) 1 C 
D) 6 C 
A) 2 C 
B) 3 C 
C) 1 C 
D) 6 C

Question 5

Each digit in a binary number is known as a

Accepted Answer

A) bit 
B) byte 
C) number 
D) digit 
A) bit 
B) byte 
C) number 
D) digit

Question 6

Rate of flow of electric charge is

Accepted Answer

A) electric current 
B) conventional current only 
C) electronic current only 
D) potential difference 
A) electric current 
B) conventional current only 
C) electronic current only 
D) potential difference

Question 7

Number of conduction electrons per unit volume is

Accepted Answer

A) electron number 
B) number density 
C) proton number 
D) neutron number 
A) electron number 
B) number density 
C) proton number 
D) neutron number

Question 8

Binary system has base

Accepted Answer

A) 10 
B) 11 
C) 1 
D) 2 
A) 10 
B) 11 
C) 1 
D) 2

Question 9

Data in compact disc is stored in form of

Accepted Answer

A) analogue signal 
B) digital signal 
C) noise 
D) colors 
A) analogue signal 
B) digital signal 
C) noise 
D) colors

Question 10

Electrons which are free to move around are also called

Accepted Answer

A) conduction electrons 
B) valence shell electrons 
C) inner electrons 
D) electron sea 
A) conduction electrons 
B) valence shell electrons 
C) inner electrons 
D) electron sea

Question 11

Variation in amplitude or frequency of carrier wave is called

Accepted Answer

A) amplitude modulation 
B) frequency modulation 
C) modulation 
D) bandwidth 
A) amplitude modulation 
B) frequency modulation 
C) modulation 
D) bandwidth

Question 12

instrument which transfers energy to electric charges in a circuit is

Accepted Answer

A) battery 
B) voltmeter 
C) ammeter 
D) galvanometer 
A) battery 
B) voltmeter 
C) ammeter 
D) galvanometer

Question 13

A wave of frequency 1 GHz has wavelength of

Accepted Answer

A) 0.4 m 
B) 0.5 m 
C) 0.2 m 
D) 0.3 m 
A) 0.4 m 
B) 0.5 m 
C) 0.2 m 
D) 0.3 m

Question 14

Value of sampled signal is used to produce a

Accepted Answer

A) binary number 
B) decimal number 
C) octal number 
D) all of above 
A) binary number 
B) decimal number 
C) octal number 
D) all of above

Question 15

Current in a circuit if resistance of 15 Ω and potential difference of 3.0 V is applied across it's ends is

Accepted Answer

A) 1 A 
B) 2 A 
C) 0.5 A 
D) 0.20 A 
A) 1 A 
B) 2 A 
C) 0.5 A 
D) 0.20 A

Question 16

Number density for copper is {{}}

Accepted Answer

A) 10-29 m-3 
B) 10 30m-3 
C) 10 29 m-3 
D) 10 20 m-3 
A) 10-29 m-3 
B) 10 30m-3 
C) 10 29 m-3 
D) 10 20 m-3

Question 17

In frequency modulation, amplitude of modulated wave is

Accepted Answer

A) positive 
B) negative 
C) constant 
D) zero 
A) positive 
B) negative 
C) constant 
D) zero

Question 18

A straight line symbol shows the

Accepted Answer

A) fuse 
B) diode 
C) connecting lead 
D) switch 
A) fuse 
B) diode 
C) connecting lead 
D) switch

Question 19

Current in a circuit when a charge of 180 C passes a point in a circuit in 2 minutes is

Accepted Answer

A) 1:00 AM 
B) 2:00 AM 
C) 3:00 AM 
D) 1.5 A 
A) 1:00 AM 
B) 2:00 AM 
C) 3:00 AM 
D) 1.5 A

Question 20

First communication satellites used frequencies of

Accepted Answer

A) 6 GHz for uplink 
B) 3 GHz for uplink 
C) 6 GHz for downlink 
D) 5 GHz for downlink 
A) 6 GHz for uplink 
B) 3 GHz for uplink 
C) 6 GHz for downlink 
D) 5 GHz for downlink

Exam 6: Electrical and Digital Concepts and Terminology

In FM, frequency of modulated wave varies with

Unwanted signal that distorts a transmitted signal is called

With a 30 m long coaxial cable, the bandwidth can exceed

If a current of 1 A passes through a point in 1 s then charge passes that point is

Each digit in a binary number is known as a

Rate of flow of electric charge is

Number of conduction electrons per unit volume is

Binary system has base

Data in compact disc is stored in form of

Electrons which are free to move around are also called

Variation in amplitude or frequency of carrier wave is called

instrument which transfers energy to electric charges in a circuit is

A wave of frequency 1 GHz has wavelength of

Value of sampled signal is used to produce a

Current in a circuit if resistance of 15 Ω and potential difference of 3.0 V is applied across it's ends is

Number density for copper is {{}}

In frequency modulation, amplitude of modulated wave is

A straight line symbol shows the

Current in a circuit when a charge of 180 C passes a point in a circuit in 2 minutes is

First communication satellites used frequencies of

Physics Force, Acceleration, and Projectile Motion

Electrical and Physics Concepts

Physics Pressure, Energy, and Waves

Physics Capacitance, Magnetic Fields, and Circular Motion

Physics and Communication

Electricity and Magnetism

Magnetism and Electromagnetism

Magnetism, Op-Amps, and Sensing Devices

Physics Forces, Moments, and Gravitational Fields

Satellites, Gravitational Fields, and Gases

Electrical Circuit and Current

Pressure, Hookes Law, Forces and Springs, Elasticity, Stress and Strain

Physics Concepts and Formulas

Physics Dimensions

Physics Topics: X-Rays, Ultrasound, Momentum, Force, and Energy

Momentum and Collisions

Physics Forces, Acceleration, and Units

Physics Terminology

Principles of Oscillatory Motion and Related Measurements

Physics and Measurement

Physics and Waves: Exploring Phenomena, Unification, and Detection

Physics and Nuclear Science

Radiation and Nuclear Science Basics

Understanding Electrical Properties and Phenomena

Energy and Temperature

Energy, Work, and Power

Filters